Aura™ Pipeline considers 3 core metrics of a model:
The number of visible triangles. A high number of triangles leads to lower FPS (frames per second), i.e. lower rendering performance.
Drawcalls are the number of unique operations the GPU needs to perform to render the model. A high number of drawcalls leads to lower FPS (frames per second), i.e. lower rendering performance.
Storage size refers to the file size of all meshes in the model. A model consists of more than meshes but usually meshes take longest to load. Smaller storage sizes lead to faster load times.
Complexity is the a score based on the overall number of unique objects and the maximum hierarchy depth.
A complex model is one with either many unique objects or a very high hierarchy depth (lot of nested objects). A simple (i.e. "non-complex") model is either one with fewer objects or a medium number of objects but rather little nesting.